123332131021 has 16 divisors (see below), whose sum is σ = 136088967168. Its totient is φ = 110839564800.

The previous prime is 123332131007. The next prime is 123332131127. The reversal of 123332131021 is 120131233321.

It is a cyclic number.

It is not a de Polignac number, because 123332131021 - 2¹¹ = 123332128973 is a prime.

It is a super-2 number, since 2×123332131021² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123332130983 and 123332131001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123332131001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193396 + ... + 532978.

It is an arithmetic number, because the mean of its divisors is an integer number (8505560448).

Almost surely, 2^123332131021 is an apocalyptic number.

123332131021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123332131021 is a deficient number, since it is larger than the sum of its proper divisors (12756836147).

123332131021 is a wasteful number, since it uses less digits than its factorization.

123332131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339972.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123332131021 its reverse (120131233321), we get a palindrome (243463364342).

The spelling of 123332131021 in words is "one hundred twenty-three billion, three hundred thirty-two million, one hundred thirty-one thousand, twenty-one".